EVCO c-pro nano CHIL - Manual (Page 59)

C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL
Pag. 59
The keyboard features 4 page navigation and value editing keys, which have the following
functions:
- UP and DOWN: in editing, it modifies parameters; otherwise, it moves the cursor. If
pressed down and held for about 2 seconds during the display of the main page, the UP key
enables the display of the other probes, according to the following table.
tin Inlet temperature probe ( --- , if disabled)
tou1 Circuit 1 outlet temperature probe ( --- , if disabled)
PrS1 Circuit 1 condensing pressure probe ( --- , if disabled)
tou2 Circuit 2 outlet temperature probe ( --- , if disabled)
PrS2 Circuit 2 condensing pressure probe ( --- , if disabled)
tEXt External temperature probe ( --- , if disabled)
Evp1 Circuit 1 evaporating pressure probe ( --- , if disabled)
Evp2 Circuit 2 evaporating pressure probe ( --- , if disabled)
tAcc Accumulation temperature probe ( --- , if disabled)
-
SET / ENTER: During editing, it confirms the value; otherwise, it sends any
commands associated to the text where the cursor is positioned. If pressed down and held for
about 2 seconds, the ENTER key enables access to the main menu. If held down during
display of an alarm page, this key enables resetting of the alarm. If alarm pages are being
displayed, every key press scrolls all active alarms.
- STAND-BY / ESC: During editing, it cancels the value; otherwise, it requests any default
page that might be associated with the current page. If pressed down and held for about 2
seconds, the ESC key enables ON/OFF switching of the machine. If pressed in the main
page, this key enables access to the list of al active alarms.
In addition , the following icons are also used:
- Summer icon: This identifies the summer operating mode (chiller): if there is a request from
the thermoregulator, the icon remains lit, otherwise it flashes (stand-by). When the heat
pump is operating, it remains off. Its significance may be exchanged with that of the winter
icon, via parameter PH53.
- Winter icon: This identifies the winter operating mode (heat pump): it the thermoregulator
requests its, it remains lit, otherwise it flashes (stand-by). When the chiller is operating, it
remains off, unless free-cooling is enabled, in which case it flashes rapidly. The significance
may be exchanged with the summer icon via the PH53 parameter.
- Fan icon: This identifies the status of fans. If it is lit, at least one fan is on; if it flashes
slowly, at least one fan is in alarm condition; if it flashes rapidly, at least one fan is
operating in manual mode; otherwise, it remains off.
- Pump icon: This identifies the status of the pump or of the delivery fan. If it is lit, at least
one pump is on; if it flashes rapidly, this indicates that a timing is enabled; if it flashes
slowly, this indicates that at least in one of the two pumps (or delivery fan) thermal
protection has been triggered.